added deserialization of the api response

app/src/main/java/com/a1/nextlocation/fragments/RouteFragment.java

@@ -42,5 +42,6 @@ public class RouteFragment extends Fragment {
 
     public void onDirectionsAvailable(DirectionsResult result) {
         Log.d(TAG, "onDirectionsAvailable: got result! " + result);
+
     }
 }

app/src/main/java/com/a1/nextlocation/json/DirectionsResult.java

@@ -1,5 +1,7 @@
 package com.a1.nextlocation.json;
 
+import android.util.Log;
+
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.JsonArray;
@@ -7,13 +9,18 @@ import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
 import com.google.gson.JsonParser;
 
+import org.osmdroid.util.GeoPoint;
+
+import java.lang.reflect.Array;
 import java.util.ArrayList;
 import java.util.List;
 
 public class DirectionsResult {
+    private static final String TAG = DirectionsResult.class.getCanonicalName();
     private List<DirectionsStep> steps = new ArrayList<>();
     private double distance;
     private double duration;
+    private double[][] wayPointCoordinates;
 
     public List<DirectionsStep> getSteps() {
         return steps;
@@ -46,8 +53,21 @@ public class DirectionsResult {
     public void parse(String json) {
 
         Gson gson = new GsonBuilder().setPrettyPrinting().create();
-        JsonObject features = JsonParser.parseString(json).getAsJsonObject().get("features").getAsJsonArray().get(0).getAsJsonObject();
-        JsonObject segment = features.get("properties").getAsJsonObject().getAsJsonArray("segments").get(0).getAsJsonObject();
+        JsonObject feature = JsonParser.parseString(json).getAsJsonObject().get("features").getAsJsonArray().get(0).getAsJsonObject();
+        JsonObject properties = feature.get("properties").getAsJsonObject();
+        JsonArray wayPointCoordinates = feature.get("geometry").getAsJsonObject().getAsJsonArray("coordinates");
+        this.wayPointCoordinates = new double[wayPointCoordinates.size()][2];
+
+
+        for (int i = 0; i < wayPointCoordinates.size(); i++) {
+            JsonElement j = wayPointCoordinates.get(i);
+            JsonArray arr = j.getAsJsonArray();
+            this.wayPointCoordinates[i][0] = arr.get(0).getAsDouble();
+            this.wayPointCoordinates[i][1] = arr.get(1).getAsDouble();
+        }
+
+
+        JsonObject segment = properties.getAsJsonArray("segments").get(0).getAsJsonObject();
 
         setDistance(segment.get("distance").getAsDouble());
         setDuration(segment.get("duration").getAsDouble());
@@ -56,7 +76,18 @@ public class DirectionsResult {
 
         for (JsonElement j : steps) {
             DirectionsStep step = gson.fromJson(j,DirectionsStep.class);
+            double lat;
+            double longl;
+            for (int i = 0; i < 2; i++) {
+                lat = this.wayPointCoordinates[step.getWay_points().get(i)][0];
+                longl = this.wayPointCoordinates[step.getWay_points().get(i)][1];
+                step.getWaypoints()[i] = new GeoPoint(lat,longl);
+            }
+
             addStep(step);
+            Log.d(TAG, "parse: added step" + step);
         }
+
+
     }
 }

app/src/main/java/com/a1/nextlocation/json/DirectionsStep.java

@@ -1,10 +1,26 @@
 package com.a1.nextlocation.json;
 
+import org.osmdroid.util.GeoPoint;
+
+import java.util.ArrayList;
+
+/**
+ * pojo class that holds the step object from the api response
+ */
 public class DirectionsStep {
     private double distance;
     private double duration;
     private String instruction;
     private String name;
+    /**
+     * these are the actual waypoints that the step refers to. The first is the beginning of the step, and the second is what it leads to.
+     * The second geopoint is always the first geopoint of the next step in the list of the {@link DirectionsResult} object.
+     */
+    private GeoPoint[] waypoints = new GeoPoint[2];
+    /**
+     * this is a list of the waypoints that are in the response, it is called way_points so it can be automatically serialized with gson
+     */
+    private ArrayList<Integer> way_points;
 
     public double getDistance() {
         return distance;
@@ -37,4 +53,20 @@ public class DirectionsStep {
     public void setName(String name) {
         this.name = name;
     }
+
+    public ArrayList<Integer> getWay_points() {
+        return way_points;
+    }
+
+    public void setWay_points(ArrayList<Integer> way_points) {
+        this.way_points = way_points;
+    }
+
+    public GeoPoint[] getWaypoints() {
+        return waypoints;
+    }
+
+    public void setWaypoints(GeoPoint[] waypoints) {
+        this.waypoints = waypoints;
+    }
 }